Betalucil (generic name Metoprolol Tartrate Tablets) generally does not injure the kidneys, the specific adverse effects of the drug vary from person to person. Metoprolol tartrate tablets are indicated for the treatment of hypertension, angina pectoris, heart failure, and are contraindicated in people who are allergic to this product or other beta-blockers, cardiogenic shock, sick sinus node syndrome, and conditions such as atrioventricular block of degree II or III. Adverse reactions such as dizziness, headache, fatigue, coldness in the extremities, palpitations (rapid heartbeat, often accompanied by panic), bradycardia, sleep disturbances, sensory abnormalities, abdominal pain, nausea, vomiting, diarrhea, constipation, and other adverse reactions are common after the use of the drug, but generally do not cause damage to the kidneys. The use of specific drugs should be guided by a specialist and should not be used without authorization.